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c) III > IV > I > IIPara-nitro PHENOL is most acidic due to -R activity, as Phenol is activating in nature when -R GROUP present in ortho-para POSITION. Then, meta nitro phenol as it shows -I behaviour at meta position and it is also activating. Then, normal phenol. LEAST is the para methoxy phenol as it shows +R activity in para position, which is deactivating for phenol. Also, -R is dominant over-I , so Para nitro phenol is most acidic. hope this will help you

rials chemistry, a BINARY phase or binary compound is a chemical compound containing two different ELEMENTS. Some binary phase compounds are molecular, e.g. CARBON TETRACHLORIDE. More typically binary phase refers to extended solids.

Have variable OXIDATION states 4) Exhibit CATALYTIC process Atomic Radij 33. When a neutral atom is converted to the anion its 1) Atomic number INCREASES 2) Atomic number DECREASES 3 Size increases 4) Mass number increases obortion qlon onto

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the ANSWER is TRUEEXPLANATION:I HOPE it HELPS you

Diethylamine is an ORGANIC compound with the formula (CH3CH2)2NH. It is a secondary amine. This is CORRECT ANSWER your options are WRONG.

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tion:UNLESS the platinum reacts with oxygen or other GASES in the flame, it undergoes a physical change. All you've done is heat up the WIRE WITHOUT causing any chemical bonds to change. The metal may have a PHASE change, but that is also physical

the Brackett Series for the emission spectra of HYDROGEN the FINAL destination of a dropping electron from a higher orbit is n=4 . The third line of Brackett series is formed when electron drops from n=7 to n=4. The released wavelength lies in the Infra RED REGION of the spectrum.please mark as BRAINLEST

I THINK i will HELP youExplanation:PLZ MARK BRAINLIST

As the power of the electron-withdrawing GROUP BECOMES stronger there is a corresponding drop in the pKa of the carboxylic acid. The presence of multiple electron-withdrawing groups compounds the inductive effect and CONTINUES to increase the ACIDITY of the carboxylic acid.Explanation:

A salt and WATER are produced when acids react with METAL oxides . Metal oxides are bases , because they NEUTRALISE acids.Explanation:HOPE it helps you

Agriculture is the practice of cultivating plants and livestock. Agriculture was the key development in the RISE of sedentary human civilization, whereby farming of domesticated species CREATED food surpluses that enabled PEOPLE to live in cities. The HISTORY of agriculture began thousands of years AGO. Explanation:Please drop some thanks

tion:Gases are highly compressible. This is because of the weak intermolecular forces of attraction between the gas molecules. Also, there is a LOT of empty space present between the gas molecules which make them highly compressible.In which of the three states of matter, the extension is MAXIMUM? GIVE REASON for your answer????Gases are highly compressible. This is because of the weak intermolecular forces of attraction between the gas molecules. Also, there is a lot of empty space present between the gas molecules which make them highly compressible.

96.4% is CORRECT ANSWER

HClHydrogen chloride REACTS with ZINC granules to give a GAS which BURNS with 'pop' sound.

Germanium.please MARK BRAINLIEST

A lithium-ion battery is a FAMILY of rechargeable battery types in which lithium IONS move from the negative electrode to the positive electrode during discharge and back when charging. From: FUNCTIONAL Nanofibers and their Applications, 2012Explanation:ok. sis your INTRO pls

When burned, the carbon is converted to carbon dioxide and the hydrogen to water. Each of those reactions PRODUCES a SLIGHTLY DIFFERENT amount of heat. This process cannot be reversed and hence, the burning of coal is a CHEMICAL CHANGE

(c) COMBINATION of water and CARBON DIOXIDE. is the correct answer

Mole fraction:-In CHEMISTRY, the mole fraction or molar fraction is defined as unit of the amount of a constituent, nᵢ, divided by the total amount of all constituents in a MIXTURE, nₜₒₜ. : the ratio of the number of moles of one component of a solution or other mixture to the total number of moles representing all of the components.Mole fraction of a PARTICULAR component is defined as the number of moles of the same component of a solution to the total number of moles of all the constituents of the solution. Mole fraction is also known as the amount fraction.Explanation:I hope you got the best answer

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tion:rain that has harmful CHEMICALS in it from factories, etc. that CAUSES DAMAGE to trees, CROPS, buildings and riversवर्षा जिसमें कारख़ानों आदि के निकले रसायन होते हैं और जिससे पेड़ों, इमारतों और नदियों को नुक़सान पहुँचता है

sdasssffgdaaasrgsaadfgtExplanation:fefeseddssssfggsdggghh

a) s(MONOCLINIC)-s(LIQUID)

Molality:-Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the DEFINITION of molarity which is based on a specified volume of solution. A commonly used unit for molality in chemistry is mol/kg.Hint: Molarity is the ratio of moles of solutes in per litre of solution while the molality is the ratio of moles of solutes in per kilogram of solvent. Molarity is generally used to calculate the volume of solvent or the amount of solute.Molarity is the ratio of the moles of a solute to the TOTAL liters of a solution. The solution includes both the solute and the solvent. Molality, on the other hand, is the ratio of the moles of a solute to the kilograms of a solvent.Molality is defined as the number of moles of solute present in 1000 gm of the solvent. Example: Calculate the molality of a solution PREPARED from 29.22 grams of NaCl in 2.00 kg of water.Explanation:i HOPE you got the best ANSWER

हमारी प्रकृति में उपलब्ध हर वो प्राकृतिक या अप्राकृतिक जो वस्तु हमारी आवश्यताओं की पूर्ति करती हो, जो हमारे उपयोग के लिये उपलब्ध हो, जो उपयोग किये जाने के लिये उपयुक्त हो 'संसाधन' कहलाती है। उपयोगिता। सीमित उपलब्धता। खपत के लिए संभावना।please MARK as BRAINLEST

: - ELECTRONIC configuration :- 2,8,4 .Step - by - step EXPLANATION :-SILICON has 14 protons and 14 neutrons.It's atomic number is 14 and it's atomic MASS is 28 .Please thanks and mark as brainliest .@ aryanrathod51

The molecular geometry is pyramidal for both the molecules. In each molecule, N atom has one LONE pair. F is more electronegative than H and N−F BOND is more polar than N−H bond. HENCE, NF3 is expected to have much larger dipole moment than NH3.Explanation:please mark me BRAINLIESTS

It is used to concentrate and reduce the volume of LIQUID samples. Nitrogen is also IMPORTANT to the CHEMICAL INDUSTRY. It is used in PRODUCTION of fertilisers, nitric acid, nylon, dyes and explosives.

Please Mark Me Brainlist Explanation:The BASICITY of an amine is INCREASED by electron-donating groups and decreased by electron-withdrawing groups. Aryl AMINES are less basic than alkyl-substituted amines because some electron DENSITY provided by the NITROGEN atom is distributed throughout the aromatic ring.

:-→ VALENCY of element A = +5→ Formula of chloride of 'A' = ACl₅Explanation :-Formula of a compound is given A₂O₅ .We know that, while writing formula of a compound, valencies of the cation and the anion are criss CROSSED .Since the valency of Oxygen is -2 (anion), so valency of the element 'A' will be = +5 .______________________________Now, we need to WRITE the formula of Chloride of element A . Here, A is cation and chlorine is anion .• Valency of A = +5• Valency of Chlorine (Cl) = -1The required formula by crossing valencies will be :-= A₁Cl₅= ACl₅Some Extra Information :-The valencies of some other important elements are :-→ Hydrogen (H) = +1→ Carbon (C) = 4→ Sodium (Na) = +1→ Aluminium (AL) = +3

It is a TRIANGULAR planar and bent.Explanation: While in SO2, S has 6 electron outermost shell and after forming bond with oxygen, sulphur leftover with 1 lone pair. HENCE there will be REPULSION b/w bond pair and the lone pair. So, due to repulsion, structure of SO2 bent.

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